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Paleontology

Paleontology

A giant tortoise

The largest freshwater turtle that ever existed, possibly the largest of all turtles, lived between 13.8 million and 5.3 million years ago in South America, inhabiting a larger area than previously thought

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Paleontology

The predator with voracious jaws

A fossil discovered in Rio Grande do Sul is the best-preserved representative of the herrerasauridae, one of the first strains of carnivorous dinosaur

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Paleontology

Tuatara fossil discovered in Rio Grande do Sul

The oldest specimen of a sphenodon in the southern hemisphere has been found in the municipality of Candelária, in the Brazilian state of Rio Grande do Sul

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Photolab

A landscape in an egg

A group led by paleontologist Sérgio Alex Azevedo, from the National Museum of Rio de Janeiro, was able to identify the fossil by analyzing its microstructure

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Paleontology

A stranger in the Grand Canyon

280-million-year-old fossil footprints from an ancient desert provide first evidence of the presence of vertebrates that in theory had not yet adapted to dry environments

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Evolution

A 42-million-year-old whale with legs

Its limbs were well adapted to swimming and were not suited to moving across land

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Interview

Max Langer: How prehistoric life forms are classified

Paleontologist explains what makes a reptile a dinosaur and explains why the origin of these animals is so hotly debated

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Cover

The First Land of the Dinosaurs

Many of the oldest known fossils of these reptiles, which lived 230 million years ago, have been found in the Brazilian state of Rio Grande do Sul, on the border of Argentina

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paleontology

The day the dinosaurs died

A discovery is helping researchers understand the events that followed the huge meteorite impact that hit Earth 65 million years ago

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Evolution

The origin of the butterfly

Studies based on gene and fossil analysis estimate that butterflies emerged between 120 and 100 million years ago

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Paleontology

The horned crocodile of Acre

New fossil belonged to the 31st known species of a group of reptiles that lived in South America between 23 million and 5 million years ago

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Video

Dinosaurs probably originated in Southern Brazil

Paleontologists talk about characteristics and origins of dinos | 10'59"

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paleontology

225-million-year-old long-necked dinosaurs

The fossils of three specimens of a new genus and species of herbivorous dinosaur have been found in the state of Rio Grande do Sul

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Paleontology

The gregarious habits of an herbivorous reptile

Researchers from the Brazilian state of Rio Grande do Sul found an assemblage of fossils from at least six different Dinodontosaurus individuals

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PALEONTOLOGY

Fossils on the move

3D reconstructions highlight new characteristics of crocodiles and dinosaurs that lived millions of years ago in Brazil

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Photolab

Brazil’s National Museum in Quinta da Boa Vista

Brazil’s National Museum in Quinta da Boa Vista, Rio de Janeiro September 3, 2018

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Paleontology

Evidence of the union of two supercontinents

Calcareous rocks in the northeastern state of Maranhão contain fossil records of the oldest plant groups in Brazil

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Paleontology

Rare dinosaur sold for €1.13 million

An auction lead to a discussion about the recent trend of treating fossils as works of art

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Paleontology

The first beaked bird

A bird that lived between 95 million and 84 million years ago is helping scientists learn how the beak evolved

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GEOLOGY

The rain that united two forests

Periods of heavy rainfall between 120,000 and 12,000 years ago may have connected the Atlantic Forest to the Amazon

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COVER

More people in the rainforest

New archaeological sites and evidence of plant domestication support the idea that pre-Columbian Amazonia was densely populated

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GEOSCIENCES

Scars of a cataclysm in Central Brazil

Rocks found in the states of Mato Grosso, Goiás, and São Paulo reveal earthquake and tsunami caused by a meteorite some 250 million years ago

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Paleontology

Shelter for giants

Extinct for 10,000 years, ground sloths and giant armadillos may have built the largest paleoburrows ever discovered on Earth

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paleontology

Pterosaurs were born unable to fly

Pterosaurs were born unable to fly

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paleontology

Fossils on the move

3D reconstructions highlight new characteristics of dinosaurs

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PALEOBIOLOGY

More than met the eye

Fossilized burrows suggest complex organisms arose before the Cambrian

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photolab

The Pampas under the microscope

The Pampas under the microscope

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archaeology

Disappearance of megafauna from Lagoa Santa

Disappearance of megafauna from Lagoa Santa

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careers

Dr. Bone Collector

Orthopedist Herculano Alvarenga became a paleontology specialist

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Geology

Ocean reefs may have emerged 20 million years earlier than previously thought

Ocean reefs may have emerged 20 million years earlier than previously thought

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